Hi, I would like to have a search suggestion based on the written word from database if matches. how can i enable that ? I use zpBase theme for long time now and my database has more than thousands of tags on 3000+ images. please guide.

You are probably looking for this? https://www.zenphoto.org/news/tag_suggest/

thanks i have this enabled but in search page it does not call that function somehow.

It should appear on the search form when typing something. I tried it works with zpBase as intended.

must have some setting missplaced. then

You actually dont need to place anything. This is on of the plugins that just have to be enabled.

btw is three any plugin or something that returns or suggest only by album name in search field ?

No, there is no such plugin